Locomotive bed



Feb. 16, 1932. w. c. KRAuTHElM-ET AL 1,845,157

LOCOMOTIVE BED Feb- 16, 1932- w. C. KRAUTHEIM ET AL 1,845,157

LOCOMOTIVE BED Filed March 2, 1931 6 Sheets-Sheet 2 Zin/enfans w n z z Feb. 16, 1932. w. c, KRAUTHEIM ET AL 1,845,157 l LQCOMOTIVE BED Filed' March 2, 1931 6 Sheets-Sheet 3 Feb- 16, 1932- w. c. KRAUTHEIM ET Al. 1,345,157

LOCOMOTIVE BED Filed March 2, 1.931

6 Sheets-Sheet 4 Penis, 1932.

w. c. KRAUTHEIM ET Al.

-LOCOMOFIVE BED Fild March 2, 1951 6 Sheets-Sheet 5 Feb. 16, 1932. w. C. KRAU'T'HEIM" ET AL 1,845,157

LocoMoTIvE BED Filed March 2 L951 6 SheetsSheet 6 Patented F eb. 16, 1932 unirse- STATES PATENTOFFICE;

WILLIAM C. IKRATlElIEl-IIVI` AND KARL S. .I-IOWARID; 0F ST.`L0UIS, IVIISSOURI, lASSIGN'ORSA n TO GENERAL STEEL CASTINGS CORPORATION, OF GRANITE CITY, ILLINOIS, A

CORPORATION 0F DELAWARE LocoMorIvE BED Appncatiqn filed March 2, 1931. serial No. 519,587.

Our invention relates to railway rolling stock and consists in a novel locomotive bed or underframing structure. `1 The main object of our invention is to produce a. bed which is rigid so as to avoid undesir-able play between operating parts mounted thereon and which, preferably, is of integral structure so as to avoidthetime and expense required for preparing separately formed parts for assembly with each other and to avoid the time and expense required for fre' quent rinspection and maintenanceV as isrequired for keeping built-up structures rigid. It is an additional object of our invention to produce a bed by casting all or asubstantial part thereof in a one piece casting and, with this end in view, we desire to eliminate unnecessary cores for the castnig mold and to `ravoid the use of cores of small dimensions;

It is a further `object of our invention to provide structure for supporting a cylinder intermediate they sides of theV frame, and above the level thereof, and structure for supporting a boiler integral with the frame and to brace the upwardlyiprojecting structure from the frame adjacent to the cross head su'pporting portion of the latter. i

detail sections taken on the corresponding section lines of Figure 1.

Figure 21 is a top view of one longitudinal s half of the bed illustrating a modified form of our invention.

Figure 22 is a side elevation of the same.

Figures 23, 24, and25 are vertical transverse sections taken on the corresponding section lines of Figure 21.

rPhe bed is of the general type described in Patent No.L 1,780,466, issued November 4,

1930 to G. F. Driemeyer and E. C. Jackson,Ak

in which av main loadlcarrying and'longitudilnal force-transmitting backbone member is provided with wheel pieces atlthje sides thereof forming pedestals for receiving the driver boxes and for mounting the spring e'qualizing fulcrums and other equipment.

The accompanying drawings "llustrate a form yof the invention adapted for six pairs ofedrivers indicated at 1,2, 3, 4, 5, `and 6.-- `The main box section 'backbone member of the frame extends abreast ofdrivers 8, 4, 5, and 6 and Vcomprises-side walls 51, a top'wall 52 and a bottom wall 53.' The channel shaped wheel pieces at the side of the'cent-er boxrvmember comprise webs 54 and flanges y55 and 56, theflanges being turned inwardly and merging with the adjacent side wallsfl of the center member. Suitable openingsv 7 are provided in flanges 55. and 56 ati intervals to lighten the casting.

Pedestal legs 8`extend downwardlyfrom the wheel pieces and the adjacent-"legs of successivel pedestals are .connected by suitable integral braces 9. Preferably the pcd-- estal legs and their braces'and the upright yportions of the, wheel pieces are of solid sec-y tion and thereby we eliminate a substantial amount ofdiificult pattern and core lwork provided by the construction shown in said Driemeyer and Jackson patent. Thegstructure alsoincludes reinforcing websv 10 and transverselydisposed crossties 11 andsuitable brackets for brake fulcrums, hangers, equalizer fulcrums and similar equipment are shown at 12, 13, and 14, respectively. At

16 are expansion sheet brackets and at 17 are brake cylinder brackets, all of these parts being integral withtlie'main members of the A bed. i

The center box member terminates adjacent to the forward pedestals of the drivers k3 and the space lbetween the pe'destals` of the second ,pair of drivers 2 is Vleft open, as indicated at lS,to accommodate 'the -rconnecting rod and 'crank (not shown) for thek center cylinder 18. At this point, the anges of the wheel pieces are eliminated, leaving a rectangular slab member 19 (see-Figure 9)". In

front of the forward driver 1 the wheel piece y takes the form of lower andfupper elements boiler support 25 downwardly to `the side Y.member wherethe cross head bracket is located. The forward portion, of the bed, shown in Figure 3, consists of a comparatively shallow box with side walls 27 ,top wall 28, bottom wall 29 and an intermediate vertical reinforcing web 30.

The main steam cylinderand boiler supzporting saddlestructure.A in itself does notv constitute our present invention but. is descrbedrand claimed in thev copending application of C. W. Kell, filed March 6, 1981, Se-

rial No. 520,510.

4.At-,the rear end of the box center member, the lower -Wall 53 extendsdownwardly (see ..F :igurev19) and includes a trailer truck ful- .Crum element'vl, The sides ofthe member :are inclined inwardlyrand merge with each other-at 32 to form adequate` support for element, 31.

,Inadlition to the objects and advantages V.ofthe above described structure which have previously been pointed out, if it is desired lto standardizethe outsidedimensions of the channel `wheel y.pieces.and, at the same time,

vary `their section and strength,'the cores between these wheel vpieces and the center member can be made larger orsnialler, as required. y A

The construction illustrated inFigures 21V to 23 substitutes side members 40 of solid section throughout the length of the/center mem- .ber4land further simplifies the formation ofafmold fora cast bed. This'structure is `,particularly advantageous on a `shorter bed, although it may be used,if desired, `on

.longer beds. ','Pedestal legs 42 are also of solid rectangularsection and are connected .by lower braces 43of similar cross section. A lower member 44, of similar section, ex-A ,tends yforwardly from the front'pedestal and .Withmember 40, and an upright web 45, YA,forms la connecting structure between the Pedestalportion of the bed and the portion .carrying themain steam cylinders 46. As in theV preferred structure, the wheel pieces in- .clude suitablev brackets 4'?, 48, and 49 for mounting the .usual kequipment thereon.

Various other modifications in the details -and arrangement y.of the bed structure embodying the *inventionl may be made without .departing rfrom the spirit thereof and we .contemplate the -exclusive use of the novel .features described herein as set forth in the accompanyingclaims.

1.111 alocomotive bed, a main centermeniber of box cross section, and driver wheelv pieces, at the sides thereof, of channel cross section having pedestal legs depending therefrom, the flanges of said wheel pieces being united with vsaid center member.

2. A locomotive bed as described inv claim 1 comprising an integral structure free of joints between overlapping elements of the parts mentioned.

3. Alocomotive bed as Ydescribed in claim 1 in which the side walls of the center member are relatively thin and the webs of the wheel pieces are relatively thick.

4. A locomotive bed as set forth in claim 1 consisting of a casting` in which the flanges of the channel wheel pieces are turned towards the center member to provide a maximum space between the side wall of the center member and the web of the wheel pieces to facilitate the coring and cleaning of the cast'- ing.

5. ln a locomotive bed, side members having portions for carrying main steam cylinders and cross head guide brackets, a boiler support spaced substantially above said cyl'-` inder carrying portions, and braces extending between said support and said bracket carrying portions. y

6. A locomotive bed as described in claim 5 consisting ofv an integral structure in Whicli said braces are of inverted U section.

l and rearwardly from said support and merging with said frame upper member.

' 9. A locomotive bed having a main center member of box section including a trailer truck fulcrum element near its rear end, the side walls of said member being inclined inwardly and merging with each other over said element.

. 10. A locomotive bed as described in claim 9 which includes slab-likev cradle sides extending rearwardly of said center member,

and elements uniting said center member and sides, all of said parts constituting an integral structure.

1l. In a locomotive bed,.a center back bone 12. In a locomotive bed as described in claim 11, elements connecting said center member and Wheel piece, the entire structure being an integral unit.

13. A locomotive bed comprising a single integral casting having spaced side members of relatively thick solid section and having connecting members of relatively thin section merging With said side members.

14. A locomotive bed comprising a single integral casting having spaced side members including pedestals, and connecting members between said side members and pedestals, said side members and pedestals having relatively i merging with said center member, the Webs of said Wheel pieces being thicker over the driver boX openings than they are intermediate said openings.

In testimony whereof We hereunto aiiix our signatures this 24th day of February, 1931.

WILLIAM C. KRAUTHEIM. KARL S. HOWARD. 

